Artwork • May 26, 2020
Artist's impression of the Euclid spacecraft, a medium-class mission in ESA's Cosmic Vision to investigate the expansion of our Universe over the past ten billion years, probing cosmic epochs from before the expansion started to accelerate, all the way to the present.
Structural and Thermal Model of Euclid
Photograph • September 19, 2019
The structural and thermal model of the Euclid satellite recently completed its thermal qualification tests at Thales Alenia Space’s premises in Cannes, France. Integrated in near-flight configuration, including the payload and service modules, the satellite model is ready to undergo mechanical vibration tests in coming weeks.
The Distribution of Matter and Energy in the Universe
Chart • January 4, 2011
This diagram shows the distribution of matter and energy in the Universe. Matter familiar to us on Earth - the atoms and molecules that make up everything we see - account for only a small fraction of the total mass-energy of the Universe. Mysterious and unknown dark matter and dark energy accounts for most of the mass-energy of the Universe.